Ohm's Law Circuits Flashcard

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R). It can be expressed as V = I × R.

Front

What is a conductor?

Back

A conductor is a material that allows the flow of electric current. Examples include metals like copper and steel.

Front

What is resistance in an electrical circuit?

Back

Resistance is the opposition to the flow of electric current, measured in ohms (Ω). It determines how much current will flow for a given voltage.

Front

What happens to current if resistance increases while voltage remains constant?

Back

If resistance increases while voltage remains constant, the current will decrease.

Front

What is the unit of electric current?

Back

The unit of electric current is the Ampere (A).

Front

If the voltage is doubled and resistance remains the same, what happens to the current?

Back

If the voltage is doubled and resistance remains the same, the current will also double.

Front

What is the formula to calculate current?

Back

The formula to calculate current (I) is I = V / R, where V is voltage and R is resistance.

Front

What is the relationship between voltage and current in a direct current (DC) circuit?

Back

In a direct current (DC) circuit, as voltage increases, current also increases, assuming resistance remains constant.

Front

What is the effect of temperature on resistance?

Back

Generally, as temperature increases, the resistance of conductors also increases.

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, components are connected end-to-end, so the same current flows through all components. In a parallel circuit, components are connected across the same voltage source, allowing multiple paths for current.